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authorJoe Perches <joe@perches.com>2012-09-13 07:13:37 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-17 17:10:05 +0400
commit05e4e5b87aab74f994acf9dd4bed4a8f1367cd09 (patch)
treee40c6ba66ea821556abbf73a71fa8b55ef73cb63
parentc2c5a7051c556036b7beb8f4a89eefdc91c3245b (diff)
downloadlinux-05e4e5b87aab74f994acf9dd4bed4a8f1367cd09.tar.xz
dev: Add dev_vprintk_emit and dev_printk_emit
Add utility functions to consolidate the use of create_syslog_header and vprintk_emit. This allows conversion of logging functions that call create_syslog_header and then call vprintk_emit or printk_emit to the dev_ equivalents. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/base/core.c27
-rw-r--r--include/linux/device.h11
2 files changed, 38 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index d325b9dab3ff..dff94c8fb350 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1913,6 +1913,33 @@ int create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen)
}
EXPORT_SYMBOL(create_syslog_header);
+int dev_vprintk_emit(int level, const struct device *dev,
+ const char *fmt, va_list args)
+{
+ char hdr[128];
+ size_t hdrlen;
+
+ hdrlen = create_syslog_header(dev, hdr, sizeof(hdr));
+
+ return vprintk_emit(0, level, hdrlen ? hdr : NULL, hdrlen, fmt, args);
+}
+EXPORT_SYMBOL(dev_vprintk_emit);
+
+int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
+{
+ va_list args;
+ int r;
+
+ va_start(args, fmt);
+
+ r = dev_vprintk_emit(level, dev, fmt, args);
+
+ va_end(args);
+
+ return r;
+}
+EXPORT_SYMBOL(dev_printk_emit);
+
static int __dev_printk(const char *level, const struct device *dev,
struct va_format *vaf)
{
diff --git a/include/linux/device.h b/include/linux/device.h
index a1443b48ed4b..0d9ba0c09791 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -897,6 +897,10 @@ extern const char *dev_driver_string(const struct device *dev);
extern int create_syslog_header(const struct device *dev,
char *hdr, size_t hdrlen);
+extern int dev_vprintk_emit(int level, const struct device *dev,
+ const char *fmt, va_list args);
+extern __printf(3, 4)
+int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...);
extern __printf(3, 4)
int dev_printk(const char *level, const struct device *dev,
@@ -918,6 +922,13 @@ int _dev_info(const struct device *dev, const char *fmt, ...);
#else
+static int dev_vprintk_emit(int level, const struct device *dev,
+ const char *fmt, va_list args)
+{ return 0; }
+static inline __printf(3, 4)
+int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
+{ return 0; }
+
static inline int __dev_printk(const char *level, const struct device *dev,
struct va_format *vaf)
{ return 0; }